Double-walled exploding projectile.



M. GLASS. DOUBLE WALLED EXPLODING PROJEGTILR APPLICATION FILED NOV. 22, 1909.

965,812 Pa ented July 26, 1910.

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max GLASS, or VIENNA, AUSTRIA-HUNGARY.

DOUBLE-WALLED EXPLODING PROJECTII'JE.

965,812. Specification of Letters Patent. Patented J uly 26, 1910..

7 To all whom it may concern: I Be it known that I, MAX GLASS, a subject 1 Application filed November 22, 1909. Serial'Nm' 529,408.

' of the Emperor of Austria-Hungary, and a tion.

:if preferred, a ring h provid resident of 176 Hadikgasse,Yienna,Austria- Hungary, have invented certain new and useful Improvements in Double-Walled Exploding Projectiles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it' appertainsto make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specifica- The subject-matter of this invention is a double-Walled exploding-projectile, in which a specially large chamber for receiving an explosive is made by means of two concentric cylinders. The point is attached specially, so that it can be given the desired required degree of hardness at its inner and outer faces in simple manner. The double walls are made by a specially inserted tube, so that the envelop or coating, cast integral with the bottom or pressed out of steel, may be made comparatively thin.. When assembling the projectile the position of its center of gravity can be placed where itis most advantageous corresponding to the intended use of the projectile.

One illustrative embodiment of the invention isrepresented by way of example in the accompanying drawing, wherein:

Figure I is a longitudinal section, and Fig. 2 a cross section in the plane A-B in Fig. 1 throu h the projectile. -Fig. 3 is a perspective ;o% a particular type of explosive filling; Fig; 4 is a perspective of a segment of the filling shown in Fig. 3; and Fig. 5- is a perspective of the segment (Fig. 4) showing its elements separated.

Referring to the drawing, the projectile comprises'a cylinder or envelop a made inthe central filling. If desired, to this end a 5 tegral with the bottom I). This cylinder less sensitive preparation may be employed carries in known manner the guide ring a for insulating in chamber 70.

for the gas-tight closure. In the bottom 7) Obviously the briquetin shown in Figs.

is screwed centrally atube d whose section 3, 4.- and 5 may be adapte for the purpose 105 is such that this tube in combination with to which the projectile-is to be put. Thus cylinder a has the required cross-sectional in the examples supposed, when it is to area so that, when impacting, the projectile serve as shrapnel, the segments n and 0 may possesses the necessary strength and capabe merely projectile non-explosive elements. bility of penetration. The point f of the On the other hand if the projectile is to be no projectile may be screwed on tube (1 and simultaneously abut against 0 linder a, but, with a guide I ring 9 may be inserted between these two parts, as shown. The tapered part of the projectile may consist of one s ecial part orming the point of the projecti e.

The interior of tube d and the recess in the point of the" projectile, also chamber k be tween tube d and cylinder or serve for bold ing the explosive.

he pro ectile is preferably filled through a hole in the bottom. Holes 71 in tube d enable the explosive to enter into the annular chamber is.

The. above described projectile can be adapted to all kinds of pro ectiles, as the same meets all preliminaryeonditions affect- .ing an ex losive projectile, such asthe possibility o accommodating a large explosivecharge and great divisibility of the projectile. Also, the same may be utilized as armor-piercing shell with the highest degree of destructibility. To this end, chamber is may be filled with a cylindrical briquet m formed of segments of rings n and 0 held together by means of an organic or inorganic binding agent. The segments are assembled into complete rings and each ring may consist, for example,- of two layers of triangular superposed parts whose slanting sides touch one another so that the super osed parts form-a rectangle in section (see igs. 4and 5). Further, only the bottom portions of chamber is and the interior of tube d may be filled with explosive charge, whereupon this charge is covered over and the upper part filled with small parts connected by briquetin The ignition is adapted to the purpose or which the projectile is used.

If the projectile is to be filled with explosive and verysensitive preparations, such a preparation will always be laced inthe central tube, whereas in cham er is will be placed a fillingwhich absorbs the'prepala tion and acts as aninsulating medium for it may be porous, whether explosive or non:

explosive, and thus serve to absorb a liquid explosive introduced into the inner chamber; so that vif initially non-explosive, the briquets may become highly explosive afterthey have absorbed said liquid. Again portion of the briqueting may be explosive and portion non-explosive, thus combining the explosive and projectile elements.

claim: l I

1. A double walled explosive projectile having aheavy base with threaded recess, a relatively light tubular outer shell integral with said base, an independent point having a threaded recess in combination with a relatively heavy connecting tube screwed into the recesses in said base and point, said tube serving to take up the greater portion of the stress of firing and impact, and forming an outer chamber between said tube and shell and an inner chamber within'the tube,

' substantially as described.

'2. A double walled explosive projectile having a heavy base with threaded recess, a relatively light tubular outer'shell integral with said base, an independent point having a threaded recess, in combination with a relatively heavy perforated connecting tube screwed into the recesses in said base and point, said tube serving to take up the greater portion of the stress of firing and impact, and forming an outer chambe'r be;

tween said tube and shell and an inner chamber within the tube with which said outer chamber communicates through said perforations, substantially as described.

3. A double walled explosive projectile having a heavy base-with threaded recess, a relatively light tubular outer shell integral with said base, an independent point having a threaded recess, in combination with a relatively heavy connecting tube screwed into the recesses in said base and point, said tube serving to take up the eater portion of the stress of firing and nnpact,-and forming an outer chamber between said tube and shell, and an inner chamber within the tube, together with a flanged guide ring clampedbetween said point and shell, substantia ly as described.

4. A double walled explosive projectile having a heavy base with threaded recess, a relativel light tubular outer shell integral with'sai base, an independent point having a threaded recess, in combination with a relatively heavy connecting tube screwed into the recesses in said base and point, said tube serving to takeup the greater ortion of the stress of firing and impact, and f0rming an outer chamber between said tube and shell, and aninner-chamber within the tube, together with a filling for said outer cham ber comhprising aiplurality of rings of seg ments s aped to form to the curvature of said chamber.

In. testimony whereof I have signed my name to this specification, in the presence of two subscribing wltnesses.

MAX GLASS. Witnesses:

RUDoLF' ZISNER, AUGUST FUGGER.

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